/* Copyright (C) 1995 Eric Young (eay@mincom.oz.au). All rights reserved. */

typedef unsigned char des_cblock[8];
typedef struct des_ks_struct {
    union {
        des_cblock _;
        unsigned long pad[2];
    } ks;
#define _ ks._
} des_key_schedule[16];

#define ITERATIONS  16

#define c2l(c,l) (l =((unsigned long)(*((c)++))), \
                  l|=((unsigned long)(*((c)++)))<< 8, \
                  l|=((unsigned long)(*((c)++)))<<16, \
                  l|=((unsigned long)(*((c)++)))<<24)

#define l2c(l,c) (*((c)++)=(unsigned char)(((l))&0xff), \
                  *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
                  *((c)++)=(unsigned char)(((l)>>16)&0xff), \
                  *((c)++)=(unsigned char)(((l)>>24)&0xff))

static const unsigned long SPtrans[8][64] = {
    {
        0x00820200, 0x00020000, 0x80800000, 0x80820200,
        0x00800000, 0x80020200, 0x80020000, 0x80800000,
        0x80020200, 0x00820200, 0x00820000, 0x80000200,
        0x80800200, 0x00800000, 0x00000000, 0x80020000,
        0x00020000, 0x80000000, 0x00800200, 0x00020200,
        0x80820200, 0x00820000, 0x80000200, 0x00800200,
        0x80000000, 0x00000200, 0x00020200, 0x80820000,
        0x00000200, 0x80800200, 0x80820000, 0x00000000,
        0x00000000, 0x80820200, 0x00800200, 0x80020000,
        0x00820200, 0x00020000, 0x80000200, 0x00800200,
        0x80820000, 0x00000200, 0x00020200, 0x80800000,
        0x80020200, 0x80000000, 0x80800000, 0x00820000,
        0x80820200, 0x00020200, 0x00820000, 0x80800200,
        0x00800000, 0x80000200, 0x80020000, 0x00000000,
        0x00020000, 0x00800000, 0x80800200, 0x00820200,
        0x80000000, 0x80820000, 0x00000200, 0x80020200,
    },

    {
        0x10042004, 0x00000000, 0x00042000, 0x10040000,
        0x10000004, 0x00002004, 0x10002000, 0x00042000,
        0x00002000, 0x10040004, 0x00000004, 0x10002000,
        0x00040004, 0x10042000, 0x10040000, 0x00000004,
        0x00040000, 0x10002004, 0x10040004, 0x00002000,
        0x00042004, 0x10000000, 0x00000000, 0x00040004,
        0x10002004, 0x00042004, 0x10042000, 0x10000004,
        0x10000000, 0x00040000, 0x00002004, 0x10042004,
        0x00040004, 0x10042000, 0x10002000, 0x00042004,
        0x10042004, 0x00040004, 0x10000004, 0x00000000,
        0x10000000, 0x00002004, 0x00040000, 0x10040004,
        0x00002000, 0x10000000, 0x00042004, 0x10002004,
        0x10042000, 0x00002000, 0x00000000, 0x10000004,
        0x00000004, 0x10042004, 0x00042000, 0x10040000,
        0x10040004, 0x00040000, 0x00002004, 0x10002000,
        0x10002004, 0x00000004, 0x10040000, 0x00042000,
    },

    {
        0x41000000, 0x01010040, 0x00000040, 0x41000040,
        0x40010000, 0x01000000, 0x41000040, 0x00010040,
        0x01000040, 0x00010000, 0x01010000, 0x40000000,
        0x41010040, 0x40000040, 0x40000000, 0x41010000,
        0x00000000, 0x40010000, 0x01010040, 0x00000040,
        0x40000040, 0x41010040, 0x00010000, 0x41000000,
        0x41010000, 0x01000040, 0x40010040, 0x01010000,
        0x00010040, 0x00000000, 0x01000000, 0x40010040,
        0x01010040, 0x00000040, 0x40000000, 0x00010000,
        0x40000040, 0x40010000, 0x01010000, 0x41000040,
        0x00000000, 0x01010040, 0x00010040, 0x41010000,
        0x40010000, 0x01000000, 0x41010040, 0x40000000,
        0x40010040, 0x41000000, 0x01000000, 0x41010040,
        0x00010000, 0x01000040, 0x41000040, 0x00010040,
        0x01000040, 0x00000000, 0x41010000, 0x40000040,
        0x41000000, 0x40010040, 0x00000040, 0x01010000,
    },

    {
        0x00100402, 0x04000400, 0x00000002, 0x04100402,
        0x00000000, 0x04100000, 0x04000402, 0x00100002,
        0x04100400, 0x04000002, 0x04000000, 0x00000402,
        0x04000002, 0x00100402, 0x00100000, 0x04000000,
        0x04100002, 0x00100400, 0x00000400, 0x00000002,
        0x00100400, 0x04000402, 0x04100000, 0x00000400,
        0x00000402, 0x00000000, 0x00100002, 0x04100400,
        0x04000400, 0x04100002, 0x04100402, 0x00100000,
        0x04100002, 0x00000402, 0x00100000, 0x04000002,
        0x00100400, 0x04000400, 0x00000002, 0x04100000,
        0x04000402, 0x00000000, 0x00000400, 0x00100002,
        0x00000000, 0x04100002, 0x04100400, 0x00000400,
        0x04000000, 0x04100402, 0x00100402, 0x00100000,
        0x04100402, 0x00000002, 0x04000400, 0x00100402,
        0x00100002, 0x00100400, 0x04100000, 0x04000402,
        0x00000402, 0x04000000, 0x04000002, 0x04100400,
    },

    {
        0x02000000, 0x00004000, 0x00000100, 0x02004108,
        0x02004008, 0x02000100, 0x00004108, 0x02004000,
        0x00004000, 0x00000008, 0x02000008, 0x00004100,
        0x02000108, 0x02004008, 0x02004100, 0x00000000,
        0x00004100, 0x02000000, 0x00004008, 0x00000108,
        0x02000100, 0x00004108, 0x00000000, 0x02000008,
        0x00000008, 0x02000108, 0x02004108, 0x00004008,
        0x02004000, 0x00000100, 0x00000108, 0x02004100,
        0x02004100, 0x02000108, 0x00004008, 0x02004000,
        0x00004000, 0x00000008, 0x02000008, 0x02000100,
        0x02000000, 0x00004100, 0x02004108, 0x00000000,
        0x00004108, 0x02000000, 0x00000100, 0x00004008,
        0x02000108, 0x00000100, 0x00000000, 0x02004108,
        0x02004008, 0x02004100, 0x00000108, 0x00004000,
        0x00004100, 0x02004008, 0x02000100, 0x00000108,
        0x00000008, 0x00004108, 0x02004000, 0x02000008,
    },

    {
        0x20000010, 0x00080010, 0x00000000, 0x20080800,
        0x00080010, 0x00000800, 0x20000810, 0x00080000,
        0x00000810, 0x20080810, 0x00080800, 0x20000000,
        0x20000800, 0x20000010, 0x20080000, 0x00080810,
        0x00080000, 0x20000810, 0x20080010, 0x00000000,
        0x00000800, 0x00000010, 0x20080800, 0x20080010,
        0x20080810, 0x20080000, 0x20000000, 0x00000810,
        0x00000010, 0x00080800, 0x00080810, 0x20000800,
        0x00000810, 0x20000000, 0x20000800, 0x00080810,
        0x20080800, 0x00080010, 0x00000000, 0x20000800,
        0x20000000, 0x00000800, 0x20080010, 0x00080000,
        0x00080010, 0x20080810, 0x00080800, 0x00000010,
        0x20080810, 0x00080800, 0x00080000, 0x20000810,
        0x20000010, 0x20080000, 0x00080810, 0x00000000,
        0x00000800, 0x20000010, 0x20000810, 0x20080800,
        0x20080000, 0x00000810, 0x00000010, 0x20080010,
    },

    {
        0x00001000, 0x00000080, 0x00400080, 0x00400001,
        0x00401081, 0x00001001, 0x00001080, 0x00000000,
        0x00400000, 0x00400081, 0x00000081, 0x00401000,
        0x00000001, 0x00401080, 0x00401000, 0x00000081,
        0x00400081, 0x00001000, 0x00001001, 0x00401081,
        0x00000000, 0x00400080, 0x00400001, 0x00001080,
        0x00401001, 0x00001081, 0x00401080, 0x00000001,
        0x00001081, 0x00401001, 0x00000080, 0x00400000,
        0x00001081, 0x00401000, 0x00401001, 0x00000081,
        0x00001000, 0x00000080, 0x00400000, 0x00401001,
        0x00400081, 0x00001081, 0x00001080, 0x00000000,
        0x00000080, 0x00400001, 0x00000001, 0x00400080,
        0x00000000, 0x00400081, 0x00400080, 0x00001080,
        0x00000081, 0x00001000, 0x00401081, 0x00400000,
        0x00401080, 0x00000001, 0x00001001, 0x00401081,
        0x00400001, 0x00401080, 0x00401000, 0x00001001,
    },

    {
        0x08200020, 0x08208000, 0x00008020, 0x00000000,
        0x08008000, 0x00200020, 0x08200000, 0x08208020,
        0x00000020, 0x08000000, 0x00208000, 0x00008020,
        0x00208020, 0x08008020, 0x08000020, 0x08200000,
        0x00008000, 0x00208020, 0x00200020, 0x08008000,
        0x08208020, 0x08000020, 0x00000000, 0x00208000,
        0x08000000, 0x00200000, 0x08008020, 0x08200020,
        0x00200000, 0x00008000, 0x08208000, 0x00000020,
        0x00200000, 0x00008000, 0x08000020, 0x08208020,
        0x00008020, 0x08000000, 0x00000000, 0x00208000,
        0x08200020, 0x08008020, 0x08008000, 0x00200020,
        0x08208000, 0x00000020, 0x00200020, 0x08008000,
        0x08208020, 0x00200000, 0x08200000, 0x08000020,
        0x00208000, 0x00008020, 0x08008020, 0x08200000,
        0x00000020, 0x08208000, 0x00208020, 0x00000000,
        0x08000000, 0x08200020, 0x00008000, 0x00208020,
    },
};

static const unsigned long skb[8][64] = {
    {
        0x00000000, 0x00000010, 0x20000000, 0x20000010,
        0x00010000, 0x00010010, 0x20010000, 0x20010010,
        0x00000800, 0x00000810, 0x20000800, 0x20000810,
        0x00010800, 0x00010810, 0x20010800, 0x20010810,
        0x00000020, 0x00000030, 0x20000020, 0x20000030,
        0x00010020, 0x00010030, 0x20010020, 0x20010030,
        0x00000820, 0x00000830, 0x20000820, 0x20000830,
        0x00010820, 0x00010830, 0x20010820, 0x20010830,
        0x00080000, 0x00080010, 0x20080000, 0x20080010,
        0x00090000, 0x00090010, 0x20090000, 0x20090010,
        0x00080800, 0x00080810, 0x20080800, 0x20080810,
        0x00090800, 0x00090810, 0x20090800, 0x20090810,
        0x00080020, 0x00080030, 0x20080020, 0x20080030,
        0x00090020, 0x00090030, 0x20090020, 0x20090030,
        0x00080820, 0x00080830, 0x20080820, 0x20080830,
        0x00090820, 0x00090830, 0x20090820, 0x20090830,
    },

    {
        0x00000000, 0x02000000, 0x00002000, 0x02002000,
        0x00200000, 0x02200000, 0x00202000, 0x02202000,
        0x00000004, 0x02000004, 0x00002004, 0x02002004,
        0x00200004, 0x02200004, 0x00202004, 0x02202004,
        0x00000400, 0x02000400, 0x00002400, 0x02002400,
        0x00200400, 0x02200400, 0x00202400, 0x02202400,
        0x00000404, 0x02000404, 0x00002404, 0x02002404,
        0x00200404, 0x02200404, 0x00202404, 0x02202404,
        0x10000000, 0x12000000, 0x10002000, 0x12002000,
        0x10200000, 0x12200000, 0x10202000, 0x12202000,
        0x10000004, 0x12000004, 0x10002004, 0x12002004,
        0x10200004, 0x12200004, 0x10202004, 0x12202004,
        0x10000400, 0x12000400, 0x10002400, 0x12002400,
        0x10200400, 0x12200400, 0x10202400, 0x12202400,
        0x10000404, 0x12000404, 0x10002404, 0x12002404,
        0x10200404, 0x12200404, 0x10202404, 0x12202404,
    },

    {
        0x00000000, 0x00000001, 0x00040000, 0x00040001,
        0x01000000, 0x01000001, 0x01040000, 0x01040001,
        0x00000002, 0x00000003, 0x00040002, 0x00040003,
        0x01000002, 0x01000003, 0x01040002, 0x01040003,
        0x00000200, 0x00000201, 0x00040200, 0x00040201,
        0x01000200, 0x01000201, 0x01040200, 0x01040201,
        0x00000202, 0x00000203, 0x00040202, 0x00040203,
        0x01000202, 0x01000203, 0x01040202, 0x01040203,
        0x08000000, 0x08000001, 0x08040000, 0x08040001,
        0x09000000, 0x09000001, 0x09040000, 0x09040001,
        0x08000002, 0x08000003, 0x08040002, 0x08040003,
        0x09000002, 0x09000003, 0x09040002, 0x09040003,
        0x08000200, 0x08000201, 0x08040200, 0x08040201,
        0x09000200, 0x09000201, 0x09040200, 0x09040201,
        0x08000202, 0x08000203, 0x08040202, 0x08040203,
        0x09000202, 0x09000203, 0x09040202, 0x09040203,
    },

    {
        0x00000000, 0x00100000, 0x00000100, 0x00100100,
        0x00000008, 0x00100008, 0x00000108, 0x00100108,
        0x00001000, 0x00101000, 0x00001100, 0x00101100,
        0x00001008, 0x00101008, 0x00001108, 0x00101108,
        0x04000000, 0x04100000, 0x04000100, 0x04100100,
        0x04000008, 0x04100008, 0x04000108, 0x04100108,
        0x04001000, 0x04101000, 0x04001100, 0x04101100,
        0x04001008, 0x04101008, 0x04001108, 0x04101108,
        0x00020000, 0x00120000, 0x00020100, 0x00120100,
        0x00020008, 0x00120008, 0x00020108, 0x00120108,
        0x00021000, 0x00121000, 0x00021100, 0x00121100,
        0x00021008, 0x00121008, 0x00021108, 0x00121108,
        0x04020000, 0x04120000, 0x04020100, 0x04120100,
        0x04020008, 0x04120008, 0x04020108, 0x04120108,
        0x04021000, 0x04121000, 0x04021100, 0x04121100,
        0x04021008, 0x04121008, 0x04021108, 0x04121108,
    },

    {
        0x00000000, 0x10000000, 0x00010000, 0x10010000,
        0x00000004, 0x10000004, 0x00010004, 0x10010004,
        0x20000000, 0x30000000, 0x20010000, 0x30010000,
        0x20000004, 0x30000004, 0x20010004, 0x30010004,
        0x00100000, 0x10100000, 0x00110000, 0x10110000,
        0x00100004, 0x10100004, 0x00110004, 0x10110004,
        0x20100000, 0x30100000, 0x20110000, 0x30110000,
        0x20100004, 0x30100004, 0x20110004, 0x30110004,
        0x00001000, 0x10001000, 0x00011000, 0x10011000,
        0x00001004, 0x10001004, 0x00011004, 0x10011004,
        0x20001000, 0x30001000, 0x20011000, 0x30011000,
        0x20001004, 0x30001004, 0x20011004, 0x30011004,
        0x00101000, 0x10101000, 0x00111000, 0x10111000,
        0x00101004, 0x10101004, 0x00111004, 0x10111004,
        0x20101000, 0x30101000, 0x20111000, 0x30111000,
        0x20101004, 0x30101004, 0x20111004, 0x30111004,
    },

    {
        0x00000000, 0x08000000, 0x00000008, 0x08000008,
        0x00000400, 0x08000400, 0x00000408, 0x08000408,
        0x00020000, 0x08020000, 0x00020008, 0x08020008,
        0x00020400, 0x08020400, 0x00020408, 0x08020408,
        0x00000001, 0x08000001, 0x00000009, 0x08000009,
        0x00000401, 0x08000401, 0x00000409, 0x08000409,
        0x00020001, 0x08020001, 0x00020009, 0x08020009,
        0x00020401, 0x08020401, 0x00020409, 0x08020409,
        0x02000000, 0x0A000000, 0x02000008, 0x0A000008,
        0x02000400, 0x0A000400, 0x02000408, 0x0A000408,
        0x02020000, 0x0A020000, 0x02020008, 0x0A020008,
        0x02020400, 0x0A020400, 0x02020408, 0x0A020408,
        0x02000001, 0x0A000001, 0x02000009, 0x0A000009,
        0x02000401, 0x0A000401, 0x02000409, 0x0A000409,
        0x02020001, 0x0A020001, 0x02020009, 0x0A020009,
        0x02020401, 0x0A020401, 0x02020409, 0x0A020409,
    },

    {
        0x00000000, 0x00000100, 0x00080000, 0x00080100,
        0x01000000, 0x01000100, 0x01080000, 0x01080100,
        0x00000010, 0x00000110, 0x00080010, 0x00080110,
        0x01000010, 0x01000110, 0x01080010, 0x01080110,
        0x00200000, 0x00200100, 0x00280000, 0x00280100,
        0x01200000, 0x01200100, 0x01280000, 0x01280100,
        0x00200010, 0x00200110, 0x00280010, 0x00280110,
        0x01200010, 0x01200110, 0x01280010, 0x01280110,
        0x00000200, 0x00000300, 0x00080200, 0x00080300,
        0x01000200, 0x01000300, 0x01080200, 0x01080300,
        0x00000210, 0x00000310, 0x00080210, 0x00080310,
        0x01000210, 0x01000310, 0x01080210, 0x01080310,
        0x00200200, 0x00200300, 0x00280200, 0x00280300,
        0x01200200, 0x01200300, 0x01280200, 0x01280300,
        0x00200210, 0x00200310, 0x00280210, 0x00280310,
        0x01200210, 0x01200310, 0x01280210, 0x01280310,
    },

    {
        0x00000000, 0x04000000, 0x00040000, 0x04040000,
        0x00000002, 0x04000002, 0x00040002, 0x04040002,
        0x00002000, 0x04002000, 0x00042000, 0x04042000,
        0x00002002, 0x04002002, 0x00042002, 0x04042002,
        0x00000020, 0x04000020, 0x00040020, 0x04040020,
        0x00000022, 0x04000022, 0x00040022, 0x04040022,
        0x00002020, 0x04002020, 0x00042020, 0x04042020,
        0x00002022, 0x04002022, 0x00042022, 0x04042022,
        0x00000800, 0x04000800, 0x00040800, 0x04040800,
        0x00000802, 0x04000802, 0x00040802, 0x04040802,
        0x00002800, 0x04002800, 0x00042800, 0x04042800,
        0x00002802, 0x04002802, 0x00042802, 0x04042802,
        0x00000820, 0x04000820, 0x00040820, 0x04040820,
        0x00000822, 0x04000822, 0x00040822, 0x04040822,
        0x00002820, 0x04002820, 0x00042820, 0x04042820,
        0x00002822, 0x04002822, 0x00042822, 0x04042822,
    },
};

#define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)), (b)^=(t), (a)^=((t)<<(n)))
#define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)), (a)=(a)^(t)^(t>>(16-(n))))
static const char shifts2[16] = { 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0 };
static int des_set_key(des_cblock * key, struct des_ks_struct *schedule)
{
    register unsigned long c, d, t, s;
    register unsigned char *in;
    register unsigned long *k;
    register int i;

    k = (unsigned long *) schedule;
    in = (unsigned char *) key;
    c2l(in, c);
    c2l(in, d);
    PERM_OP(d, c, t, 4, 0x0f0f0f0f);
    HPERM_OP(c, t, -2, 0xcccc0000);
    HPERM_OP(d, t, -2, 0xcccc0000);
    PERM_OP(d, c, t, 1, 0x55555555);
    PERM_OP(c, d, t, 8, 0x00ff00ff);
    PERM_OP(d, c, t, 1, 0x55555555);
    d = (((d & 0x000000ff) << 16) | (d & 0x0000ff00) | ((d & 0x00ff0000) >> 16) | ((c & 0xf0000000) >> 4));
    c &= 0x0fffffff;
    for (i = 0; i < ITERATIONS; i++) {
        if (shifts2[i]) {
            c = ((c >> 2) | (c << 26));
            d = ((d >> 2) | (d << 26));
        } else {
            c = ((c >> 1) | (c << 27));
            d = ((d >> 1) | (d << 27));
        }
        c &= 0x0fffffff;
        d &= 0x0fffffff;
        s = skb[0][(c) & 0x3f] | skb[1][((c >> 6) & 0x03) | ((c >> 7) & 0x3c)] | skb[2][((c >> 13) & 0x0f) | ((c >> 14) & 0x30)] | skb[3][((c >> 20) & 0x01) | ((c >> 21) & 0x06) | ((c >> 22) & 0x38)];
        t = skb[4][(d) & 0x3f] | skb[5][((d >> 7) & 0x03) | ((d >> 8) & 0x3c)] | skb[6][(d >> 15) & 0x3f] | skb[7][((d >> 21) & 0x0f) | ((d >> 22) & 0x30)];

        *(k++) = ((t << 16) | (s & 0x0000ffff)) & 0xffffffff;
        s = ((s >> 16) | (t & 0xffff0000));

        s = (s << 4) | (s >> 28);
        *(k++) = s & 0xffffffff;
    }
    return 0;
}


static unsigned const char con_salt[128] = {
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
    0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
    0x0A, 0x0B, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A,
    0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12,
    0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A,
    0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22,
    0x23, 0x24, 0x25, 0x20, 0x21, 0x22, 0x23, 0x24,
    0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C,
    0x2D, 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34,
    0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C,
    0x3D, 0x3E, 0x3F, 0x00, 0x00, 0x00, 0x00, 0x00,
};

static unsigned const char cov_2char[64] = {
    0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
    0x36, 0x37, 0x38, 0x39, 0x41, 0x42, 0x43, 0x44,
    0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C,
    0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54,
    0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x61, 0x62,
    0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A,
    0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72,
    0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A,
};

#define D_ENCRYPT(L, R, S) \
    t=(R^(R>>16)); \
    u=(t&E0); \
    t=(t&E1); \
    u=(u^(u<<16))^R^s[S  ]; \
    t=(t^(t<<16))^R^s[S+1]; \
    t=(t>>4)|(t<<28); \
    L^=     SPtrans[1][(t    )&0x3f]| \
            SPtrans[3][(t>> 8)&0x3f]| \
            SPtrans[5][(t>>16)&0x3f]| \
            SPtrans[7][(t>>24)&0x3f]| \
            SPtrans[0][(u    )&0x3f]| \
            SPtrans[2][(u>> 8)&0x3f]| \
            SPtrans[4][(u>>16)&0x3f]| \
            SPtrans[6][(u>>24)&0x3f]


static int body(unsigned long *out0, unsigned long *out1, des_key_schedule ks, unsigned long Eswap0, unsigned long Eswap1)
{
    register unsigned long l, r, t, u;
    register unsigned long *s;
    register int i, j;
    register unsigned long E0, E1;

    l = 0;
    r = 0;
    s = (unsigned long *) ks;
    E0 = Eswap0;
    E1 = Eswap1;
    for (j = 0; j < 25; j++) {
        for (i = 0; i < (ITERATIONS * 2); i += 4) {
            D_ENCRYPT(l, r, i);
            D_ENCRYPT(r, l, i + 2);
        }
        t = l;
        l = r;
        r = t;
    }
    t = r;
    r = (l >> 1) | (l << 31);
    l = (t >> 1) | (t << 31);
    l &= 0xffffffff;
    r &= 0xffffffff;
    PERM_OP(r, l, t, 1, 0x55555555);
    PERM_OP(l, r, t, 8, 0x00ff00ff);
    PERM_OP(r, l, t, 2, 0x33333333);
    PERM_OP(l, r, t, 16, 0x0000ffff);
    PERM_OP(r, l, t, 4, 0x0f0f0f0f);
    *out0 = l;
    *out1 = r;
    return 0;
}

char *crypt1(char *buf, char* outputbuff, char *salt)
{
    unsigned int i, j, x, y;
    unsigned long Eswap0 = 0, Eswap1 = 0;
    unsigned long out[2], ll;
    des_cblock key;
    des_key_schedule ks;
    /*    unsigned char buff[20];  TS1 static */
    unsigned char bb[9];
    unsigned char *b = bb;
    unsigned char c, u;

    x = outputbuff[0] = ((salt[0] == '\0') ? 'A' : salt[0]);
    Eswap0 = con_salt[x];
    x = outputbuff[1] = ((salt[1] == '\0') ? 'A' : salt[1]);
    Eswap1 = con_salt[x] << 4;
    for (i = 0; i < 8; i++) {
        c = *(buf++);
        if (!c)
            break;
        key[i] = (c << 1);
    }
    for (; i < 8; i++)
        key[i] = 0;
    des_set_key((des_cblock *)(key), ks);
    body(&(out[0]), &(out[1]), ks, Eswap0, Eswap1);
    ll = out[0];
    l2c(ll, b);
    ll = out[1];
    l2c(ll, b);
    y = 0;
    u = 0x80;
    bb[8] = 0;
    for (i = 2; i < 13; i++) {
        c = 0;
        for (j = 0; j < 6; j++) {
            c <<= 1;
            if (bb[y] & u)
                c |= 1;
            u >>= 1;
            if (!u) {
                y++;
                u = 0x80;
            }
        }
        outputbuff[i] = cov_2char[c];
    }
    outputbuff[13] = 0;
    return (char *) outputbuff;
}
